Java Innovations

There are over 9 million Java developers on the planet. These developers are enjoying some of the biggest innovations to this open-source language since James Gosling first created this game-changing language and environment. With the release of Java 7 last year and with Java 8 imminent, this army of software engineers has new frameworks, improved libraries and powerful language changes as part of their development arsenal. In addition, there has been a huge increase in the Java ecosystem with new ports, new JVM languages and new directions with cloud computing and the Internet/Web of Things.

Day of week:

Thursday

Location:

Grand Ballroom - Salon A/B

Host:

Frank Greco

Presentations

Embedded Java and MQTT

4:00pm - 4:50pm

By: Peter Niblett

More smartphones and tablets were sold last year than PCs and this, coupled with the recent growth of activity in the M2M (Machine to Machine) space (sensors and sensor gateways) is making the much talked about Internet of Things a reality. Many of the devices used in these systems have to deal with intermittent connections, and the possibility of network disruption. In addition, minimal data costs are crucial if networks are going to cope with millions and billions of connected devices.

MQTT is a simple event-driven messaging protocol designed for use by devices and edge-of network gateways. It provides reliable transport, when needed, coupled with low network overheads and a small implementation footprint that makes it suitable for embedding in devices with limited processing capabilities or low power budgets. It can be used either natively over TCP/IP or across a WebSocket connection.

In this session you will learn more about what MQTT is, and how it compares with HTTP. I will look at how to program to it in Java and the various Java client libraries and server implementations available today, focusing on the Open Source Eclipse Paho project specifically the Java client libraries. I will also discuss the progress being made in standardizing MQTT at OASIS.
Deep Dive into G1 Garbage Collector

2:50pm - 3:40pm

By: Charlie Hunt

The garbage-first, also know as the G1, garbage collector is an officially supported garbage collector in Java 7 update 4 and later JVMs based on Oracles HotSpot. This session describes theoperational basics of G1 and how to tune it. Attendees of this session can expect to learnthe basic operation of the G1 garbage collector, understand G1 GC logs and learn how to fine-tune it, if fine tuning is required, along with tips on what to
expect when migrating fromParallelGC or CMS to G1 GC.
Java Concurrent Animated

1:40pm - 2:30pm

By: Victor Grazi

This presentation consists of a series of animations that visualize the functionality of the components in the java.util.concurrent library.

Each animation features buttons that correspond to the method calls in that component. Each click of a button shows how the threads interact in real time. The animations are controlled by the actual Java concurrent component they are illustrating, so the animation is not only a visual demonstration, it's also a code sample. Threads are color coded according to the thread state
Mary had a little Lambda

10:20am - 11:10am

By: Stephen Chin

Lambda expressions are coming in Java 8 and dramatically change the programming model. They allow new syntactic patterns that were not possible before, increasing the expressiveness and power of the Java language. In this presentation, you will learn how to take advantage of the new lambda-enabled Java 8 APIs including enhanced collections, functional interfaces, and simplified event handlers. Start using these in your application today leveraging the latest OpenJDK builds so you can prepare for the future Java 8 release.
Java Unconference

11:30pm - 12:40pm

By: Dio Synodinos

Meeting each other in the context of conversations we care about is why at QCon we are giving prime time to the unconference format; it creates a space for peer-to-peer learning, collaboration and creativity.

First we’ll father in a circle to be guided through creating an agenda using open space technology. Then there will be three three 20 minute time slots, each with 5 concurrent break out discussions that were designed by you.

Attendees often know more than the speakers! Bring your questions, ideas - be prepared to be surprised.
Building Java HTML5/WebSocket Applications with JSR 356

5:10pm - 6:10pm

By: Reza Rahman

The family of HTML5 technologies has pushed the pendulum away from rich client technologies and toward ever-more-capable Web clients running on today’s browsers. In particular, WebSocket brings new opportunities for efficient peer-to-peer communication, providing the basis for a new generation of interactive and “live” Web applications. This session examines the efforts under way with JSR 356 to support WebSocket in the Java programming model, from its base-level integration in the Java Servlet and Java EE containers to a new, easy-to-use API and toolset that are destined to become part of the standard Java platform.